The Dark Sun: Falling Star
Lone survivor of Dragonborn Attack
Blackguard of several years. Went with five other combatants and five non-combatants to get what is believed to be a dragon egg. Five non-combatants were dragged off, the five other combatants were beheaded. He walked 30 miles back to town on his own to report his failure in losing the egg. He was purged of his weakness and sent back on duty.
He did seem to point the search to collect the egg in the wrong direction. His survival, while he was telling the truth, seems suspicious.